Step 1: Identify the conclusion
Marian Anderson did not take success for granted.
This is what the argument is trying to prove.
Step 2: Identify the premise
Marian Anderson had to struggle early in life.
The argument also states:
Anyone who has to struggle early in life is able to keep a good perspective on the world.
So we have:
Struggled early in life ⟶ Good perspective on the world.
Since Marian Anderson struggled early in life:
Marian Anderson ⟶ Good perspective on the world.
Now, to reach the conclusion:
Marian Anderson ⟶ Did not take success for granted
we need the missing link:
Good perspective on the world ⟶ Does not take success for granted.
This is exactly what Option B says.
Chain of reasoning
Struggled early in life
⬇
Good perspective on the world
⬇ (Assumption B)
Did not take success for granted.
Therefore, the conclusion follows logically.
Why the other options are wrong
A. Says Success → Takes success for granted. This actually suggests Marian Anderson would take success for granted, contradicting the conclusion.
C. Reverses the given premise (Good perspective → Struggled early). It doesn't help reach the conclusion.
D. Says Doesn't take success for granted → Struggled early. This reverses the needed direction.
E. Says Doesn't take success for granted → Good perspective. Again, it's the reverse of what we need.